FINDINGS:
Low lung volumes are noted along with obscuration of the left
 costophrenic angle, likely representing a pleural effusion.  There is mild
 pulmonary vascular congestion.  The right IJ catheter terminates in the right
 atrium.  There is no focal consolidation or pneumothorax.  Median sternotomy
 wires and aortic valve replacement are noted.  There is no change in the
 cardiomediastinal silhouette.

IMPRESSION:
Left pleural effusion and mild pulmonary vascular congestion.